| This device came to me from the (now gone) Black Hole in Los Alamos. The second mirror was missing, so I had to fabricate a replacement. |
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| First level the device, and point the rotation axis to the North star. Then you set the next mirror so that the sunbeam points to where you want it, in this case to the couch on the other side of the house. If you do the alignment correctly, this light spot does not move |
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My heliostat
angles.pdf
polarpaper.png
season_curve.png
At Harvard, the Collection of historical Instruments
The heliostat in this collection
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